diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md
index 56ac3b95b375d0cfae45de4eb1dafc9433b66a49..3de98c1f81a6446b94d7413f2b2f315181decc8f 100644
--- a/activerecord/CHANGELOG.md
+++ b/activerecord/CHANGELOG.md
@@ -89,6 +89,14 @@
     defaults without breaking existing migrations, or forcing them to be
     rewritten through a deprecation cycle.
 
+    New migrations specify the Rails version they were written for:
+
+        class AddStatusToOrders < ActiveRecord::Migration[5.0]
+          def change
+            # ...
+          end
+        end
+
     *Matthew Draper*, *Ravil Bayramgalin*
 
 *   Use bind params for `limit` and `offset`. This will generate significantly